Machine for making concrete pipes



s. H. CQOOGAN J 1,785,298

MACHINE FOR MAKING CONCRETE PIPES Dec. 16, 1930.

Filed May 8, 192a s Sheets-Sheet 1 Dec. 16, 1930. s. H. COOGAN 1,785,298

MACHINE FOR MAKING CONCRETE PIPES Filed May 8, 192a s Sheets-Shoot 2 i boyazv, I

351; Q I I I a STEPHEN H. women, or, nismonn, mama; rissrelvon; T0. o'ooeAn eono'nnmnfilm- 'CHINEBYQGQMPANYLTDL,"OF-58115316133}, CALIEQRNIA MACHINE R This invention relates to maohinesfor,

' provided for ;clrivi ng,- and for. raising fa packer head a relative t v mold i h the pipeis formed. it

The primary object of, the present invena tion: is to p-rovide improved manually-eon trolled poweroperated meansfor slowly'ra'ising the packer-head. Another object is to provide whereby the concrete feed box islifted from limit of movement. l 7

Still another obj eet is; to providea machine.

of the above kind .whi-eh embodies packer raising and driving meansand. feed box lift. ingmeans which are s mple 1n character andefiicient in operation: I V The invention eonsistsjin the novel form, combination and arrangement of parts hereinafter more fully '-deseribed, 'shovvn in the accompanying drawings and claimedp In the drawingsrd Figure 1 is a front elevationalviewof a a machine, for making coneretepipes, embody} 1 ing the present invention;

Figure 2 is a side elevational view thereof,

p Figure 3 is atop plan view of the same;

and p a Figure is an enlarged fragmentary hon zontal section on hnejii ofjFlgure 1.

I Referring more in detail to the drawings;

5 indicates a suitable supporting frame havbetweenthe lower ends of the rods 7 is a 4 gear casing 8 1n WhlCh 1s ]ournaled ahorland journaled as-at l1v on the front of the suspended as. at 17. r v: a 1v Fixed to and depending from1the5end's of I j the bar'flfi a're a pair of rods 18 to; W-hich are i efficient means" horizontal. shaftfi 22 journaled 'oncxthetop zontal worm gear '9, and which is alsosupported by a pair ofspaced horizontal frame members 10 at a point Well above the'bottom of the frame. The gear easingS is th usefi'ee- '29- ,Ithefl owe r-end the. leverBQ being tively supported and held 'againstfturning Serial to. 276p??? I having, akslidin'g 1 l(ey connection with the 1 worm gea1f9 is a -ve'rtical shaft 14 which is Ourna ledinithe casing Sand has a packer head 15' on its lower end. tSl-idable on the;

rods 7 aboveithe easing '8is a horizontal? bar '16 1n which the upper endof thepacker'shaft lt is ournaled and from which said shaftis conneetechas'atf19 the lower ends o-f-aj pair of hoisting; cables 2O 'whosen'upper ends are j V attached t'otherespective ones'of'a pair of 1 the mold as the packer approaches its upward winding "drums -21- 'see ured. on; a-.i ,rans verse frame bar 6? Fixed on the ends of the shaft sprocket :iwheel' 28,jwhile' the easing of the clutch ,27 is: suitably l fixed to; the frame .5

.i's disengaged; while rotation of'the sproeket saiidch1toh'2T-eauses the latter to, aetas a V bra ke tofrestrain' the shait 25 against turning. ing a top cross bar-6 at the front thereof 1 1A to which are attachedthe upper ends'of a pair of vertical rods 7. Carried by' and arranged abetween'said'elutehesv for seleetiveindepend. I ent engagement ofthe latten whereby the shaft 'be-d-riven or held fron rotation at will.f; -A lever 30 pivoted-to the p frameat nected inter pperfend; and operativelv con liate its'ends with the aetnator nected to theupper end ofiahand operating :le' ver 31 bynieansof a1 ink,32,.'and the lever beingfpivoted to one sideofthe frame 5 Journaled toppf uYnaifiei51io urea-(1i turtherf horizontal? 22 a r e :re1atively large spur gears; 23 which 1 ,inesh; Withsmaller gearsx2't seoured on; the r n ends of a furtheiv transverse horizontal shaft journa1ecl :on1 top, of the frame; -5 directly 7 behind theshajft 22.1 Carried by theshaft 25 area p ai r =ofspacedfrictionchitehes 26 and a 27, "anfdthe'Clutch-26vhas:abasingjbflrying a r l '15 againstturning, The easing ofthe clutch-26 i J and i the sprocket wheele28} treeto turn, relative: to {the shaft; 25Jwhen the said. clutch carried by saidshafti 12 to permit shaft 34 on which is fastened a small sprocket wheel 35 operatively connected to the larger sprocket wheel 28 by means offan endless sprocket chain 36. FA furtherisprocket re duction gearingjeonnectsthe shaft 34 with a shaft 37 mountedftherebelow, as generally in-' dicated at-38, and this shaft 37 {is jo'urnaled.

behind thedrive shaft 12 and operatively connected to the latter by yet another: sprocket reduction gearing39. lnthis way, oa constant driving connection is provided between the driveshaftl2 and thesprocketwhe'el'28,

embodying a series of reductiongears'which cooperate to cause extremely slow vert cal movement of the packer when the shaft-'12 isdri ven and the sprocketwheel 28 is'clutched to shaft 25 for causing thQCZLblGSf'QOUtO be "wound on the 'drums 21; 'A pulley. 4O,'or the like, may be provided on'the outer. end of the shaft 12 for connectionwith a suitable source of-powenfwhile a further pulleyelimay be a-concretemixer therefrom. a V

From the above-description 'lll-Vlll be understood that-a mold 42 will be supported imposition to have 'the pipe formed therein,

the packer being slowly raised in the mold'as, theformation of the pipe'proceeds, and the concrete being suitably dnmpedlinto a box 43 for being fed into theiniold'asthe packer the-feed bore 453. rests on slid'ably extend. Stopmemb'ers 45 are provided on thejlower ends of the rods 18 and are adapted to engage the-sleevesf A as the packer 15 emerges from the upper endiof the mold-at completion of the pipeforrning'oper ;ation,-; whereby,-

uponcontinued upward movement of the rods "18 for a further short distance, the feed boi: 43 will be lifted .offof 1 the mold to permit its ready removal and subdriving of.

ly connected at its upper .end to said movable frame and supported thereby for vertical movement withsaid frame, a gear splined on said packer shaft, means for holding said gear in .a fixed given horizontal plane, a worm gear meshing with said gear, a-horizontally disposed power shaft for driving said worm gear, power means for driving said power shaft and for, operating said packer shaft vertically, andhand operatable means for actuating said power meansfsaid hand operatable means adapted when moved in one direction to actuate the packer shaft upwardly and adapted when moved in the other direction to brake' the gravity descent of the packer shaft and-all parts movable therewith;

j p 2. A machine for maln'ng concrete pipe con'oprising a vertically movable frame, a vertically'disposed packer carrying shaft having its upper end rotatablyconnected to and supported-by said movable frame, a gear slidably splined onsaid packer shaft, means for holdingsaid gear in a fixed given horizontal plane, a worm gear meshing with said gear, a power shaft'sup'porting said wormgear, oppositely disposed stops carried by the vertically movable frame andadapted-to engage the opposite sidesof the mould hopper and a lift the latter at apredetermined time in an upward movement of said frame, power meansfor driving said'power shaft and for operating said packer shaft vertically, and

' hand operatable means adapted when-moved in one direction to'actuate the packer shaft upwardly and adaptedwhen' moved in the opposite direction to brake the gravity descentoffthe'packer shaft and its correlated 7 parts], ti Intestimony. whereof'I afiixxmy signature.

. STEPHEN H. o'ooeA stitution of an empty mold therefor. -As soon h as the feed box is lifted ofl of the mold, the clutch 26 is disengaged and the'brake clutch v '27 isengaged, thereby holding the feed box raised until the emptymold has been put in v g packer into said mold.

place; The brake clutch 27 isthen'partially released to allow the shaft 22fand drums 21 to turn and to permit tli'e-cables20 to unwind f i r at a proper speedfoii lowe'ring the fQGdbOX ontotl'ie new mold and for also lowering the 1 l The frame 5preferablyhas suitable'guides i 46 for therods 18 below the gearfca'singiS and V just high enough to permitthefeed boxtot liftedl entirely clearof the mold.'; i

"'Minorch'anges'ymay be made without der I parting from the spirit ands ope of-the in-j;

ventio'n asclaimed. 

